A sbestos is still allowed to be in materials today and is only Banned in a few products. So until testing proves otherwise we assume ALL materials are Positive until proved otherwise. Here are some materials we found tested positive in Seattle commercial and residential buildings.
Some listed items are contributed by other AHERA inspectors.
Vapor barrier behind brick veneer
The vapor barrier on the interior side of exterior walls behind plaster
Gypsum roof deck (this is less often ACM, but I've found it on at least 3 roofs)
Mastic / vapor barrier below floor filler and flooring
Vapor barrier below terrazzo floors.
Bituminous waterproofing on concrete foundation walls below grade
Built-up roofing UNDER concrete
Transite breaker blocks for electrical circuits
Transite board behind electrical panels
Elevator cars coated with a black sealant
Corrugated asbestos paper insulation in elevator doors
Transite inside metal partition walls for offices/cubicles
Flower pots
Glue inside partition walls
Cisterns
Cowling around roof vent fans
Elevator brake shoes
Clutches in conveyor belts and other equipment
Framing around radiator
Loose fill attic insulation ("Karsolite" & "Zonolite")
Mortar was used to insulate hot water piping in homes
Distance holders used with lightning conductors
Brick was used intermittently in the masonry walls of schools to nail into
Fiber backing on the back of fiberglass roofing composite shingles
Plaster de Paris
Core on fiberglass pipe insulation
(vermiculite) in thick plaster base coat beneath scratch and finish coat
Paper on fiberglass bats (muck like kraft back) within metal walls of an insulated rail car
Loose fill attic insulation
Fire door
Spray-on Fireproofing added to the concrete foundation
Sink undercoating
Butterfly valve in an in-line fire/smoke damper
Foil backed fiberglass
Red cementitious flooring / Magnesite Floor Screed
Wallpaper
Varnish on a door
Pink loose type screed
Garage door rope
Shaggy bark of an artificial tree in a lobby
“ash” in a gas-fired fireplace
Thinset adhesive used for ceramic tile,
Dampers in a church organ
Layered soundproofing to a floor in a church bell tower
Wood type oak veneers made from asbestos at the old 'Turners Asbestos Factory' in Manchester UK
Padding as soundproofing behind ornate plaster in a Victorian ballroom
Fire curtain
W.C. cisterns
Rocks sold for carving pendants
Chimney flu from a hot water heater
Surround from an industrial extraction fan
Thin (3-5mm thick) foam inserts lining the inside of doors to process control panels
Bitumen of the roads
Building pads
Improvised cricket pitch
Cubic yard blocks of concrete
Fiber backing of Berber carpet
Terrazzo floors(red)
Concrete door Thresholds
Hotel rooms with ACM fire doors
Concrete floor patching
Asphalt flooring (similar to blacktop)
Duct-wrap type thin Sheet Paper-Slip/vapor barrier of a built-up roof system
Duct-wrap type thin Sheet Paper-Behind original metal classroom row lights
Hollow fire Doors - Heavy 1/4" thick mastic on interior
Gypsum Plank Floor Mastic Vapor Barrier
File cabinets/safe insulation
Wallpaper
EPDM Roof Lap sealant
Cable Conduit in manholes - thick, brown, fibrous asphaltic "pipes"
Terrazzo with asbestos
Aircraft engine sealant/gasket - extremely hard, clear to tan, epoxy possibly
Caulk at the wall to floor junction - looks like window glazing
Inside of stacks at a former steel plant
Inside main stacks on a tug boat lined with transite
Chalkboards
Galvanized corrugated metal looking material (Galbestos)
Chalkboard mastic
Expansion joints of concrete curtain walls
White chrysotile material within metal windows
Brown paper that wraps fiberglass insulation
Rubber roof seam positive
Thick paint on CMU walls
Aircell sheets on ductwork
Granular surfacing, which I initially thought was just dust/debris buildup, on the inside of large Westinghouse motor & generator housings
Black cork surfacing on piping
Viewing shield of a boiler
Pure crocidolite sprayed on the auditorium walls
CSI Kits for kids containing fake fingerprint powder
Black asphaltic coating (much like a sink undercoat) on the backside of cast aluminum basketball backboards
The mortar between a product called Pyrobar bricks
Alpine Slide track was made of ACM transite
Under the wood floor, inside what are called sleepers, filled with chrysotile, for noise and or fire protection
Electrical wiring where the inner plastic coating contains chrysotile.
Plaster as patching behind an old AIB fume hood
Seam mastics between lab countertops
Wire mesh with the white disc for holding glass containers over Bunsen burners
Old electronic lab equipment with the thick gray insulating board
Chalkboards
Lab countertops and fume hood countertops
Chrysotile mat under lead flooring.
Black ACM mastic used to attach a paper/foil jacket to fiberglass pipe insulation
ALL WHITE Roofing felt/paper
Concrete Foundations
Concrete Sidewalks/Driveways
Electrical Wire Insulation
Drywall
Joint Compound
Roofing Tar - (Still Sold Today)
On the inside of speaker, the box's in K-12 Schools
Drip pan - Clay Liner
Window putty
Rope
Stage curtains
Floor Underlayment
Fiberglass Paper Backing
Fireplace Decorative Logs
Concrete expansion-seam caulks
Rubber
Sub-Flooring Slip Sheet
Gray Roofing Paint
Brick Mortar
Lab Hoods
Chalkboards
Poured Flooring
Furnace Gaskets
Wood Stove Door Gasket
Cement Siding
Window Glazing
Plaster
Felt Floor Padding
Cement Wall Board (Found in Kirkland,WA home on exterior Sheathing over 1" thick)
Floor Leveler
Circuit Breakers
Note: This list does not include every product that may contain asbestos. It is intended as a general guide to show which types of materials have been found to contain asbestos.